Re: [PATCH] usb: ehci-platform: switch over to shared reset

From: Hans de Goede
Date: Tue Jul 26 2016 - 05:36:59 EST


Hi,

usb-next already has:

https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/drivers/usb/host/ehci-platform.c?h=usb-next&id=76d15c8fba655c9b2d60cf01834858f2c44483dc
https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/drivers/usb/host/ohci-platform.c?h=usb-next&id=62d9694a003dba585026df36c181e3ca930aeafc

Regards,

Hans



On 19-07-16 13:32, Masahiro Yamada wrote:
The recent update in the reset subsystem requires all reset consumers
to be explicit when requesting reset lines. For detail, see the log
of commit 3c35f6edc09b ("reset: Reorder inline reset_control_get*()
wrappers").

The devm_reset_control_get_optional() is deprecated, and falls into
the _exclusive variant during the migration, but the reset control
in this driver is apparently shared-tolerate. Besides, this driver
is for generic platforms, so actually should be able to work with a
shared reset line.

Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---

drivers/usb/host/ehci-platform.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 1757ebb..2f5a16c 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -234,7 +234,7 @@ static int ehci_platform_probe(struct platform_device *dev)
}
}

- priv->rst = devm_reset_control_get_optional(&dev->dev, NULL);
+ priv->rst = devm_reset_control_get_optional_shared(&dev->dev, NULL);
if (IS_ERR(priv->rst)) {
err = PTR_ERR(priv->rst);
if (err == -EPROBE_DEFER)